煤炭飞灰和底灰是使用吸附和催化过程减少CO2的低成本原料
Abdelkader Labidi1, Haitao Ren1, Qiuhui Zhu1
1School of Environmental Science and Engineering, Shaanxi University of Science and Technology, Xi'an 710021, PR China.
The Science of the total environment
|December 11, 2023
概括
煤灰,像飞灰和底灰一样,提供了一种低成本的解决方案,通过吸附和催化捕获二氧化碳 (CO2). 本次审查强调了它们将二氧化碳转化为甲的潜力,有助于缓解全球变暖.
科学领域:
- 环境科学与工程环境科学与工程
- 材料科学 材料科学 材料科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 化石燃料燃烧,工业和农业是二氧化碳 (CO2) 排放的主要来源,加剧了全球变暖和不利的健康影响.
- 有效的二氧化碳捕获技术对于缓解气候变化和促进清洁能源至关重要.
- 低成本的材料,特别是煤灰 (废物到材料),正在成为捕获二氧化碳的有希望的候选者.
研究的目的:
- 审查最近利用煤灰 (飞灰和底灰) 减少二氧化碳排放的进展.
- 讨论用于二氧化碳吸附和催化的煤灰基材料的化学修饰,特征和性能.
- 突出煤灰在选择性地将二氧化碳转化为甲 (CH4) 的潜力,降低废物处理成本和环境影响.
主要方法:
- 对减少二氧化碳中的煤灰应用现有文献的审查.
- 详细讨论以煤灰为基础的原料结构改造和特征化化学路径.
- 对改性煤灰的吸附和催化性能进行分析,以选择性地将二氧化碳转化为CH4.
主要成果:
- 煤灰,包括飞灰和底灰,显示出大量的二氧化碳捕获能力.
- 改性煤灰衍生物表现出有效的催化性能,用于选择性降低二氧化碳到甲.
- 这些过程为二氧化碳的整治和废物利用提供了双重好处,降低了处置成本.
结论:
- 煤炭飞灰和底灰是用于二氧化碳捕获和转化为甲的优秀低成本材料.
- 开发煤灰的先进技术和回收策略对于它们在二氧化碳整治中的有效使用至关重要.
- 利用煤灰来捕获二氧化碳可以大大有助于缓解全球变暖和管理工业废物.
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